428242828 has 48 divisors (see below), whose sum is σ = 827908704. Its totient is φ = 192614400.

The previous prime is 428242823. The next prime is 428242849. The reversal of 428242828 is 828242824.

It is not an unprimeable number, because it can be changed into a prime (428242823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351276 + ... + 352492.

It is an arithmetic number, because the mean of its divisors is an integer number (17248098).

Almost surely, 2^428242828 is an apocalyptic number.

It is an amenable number.

428242828 is a deficient number, since it is larger than the sum of its proper divisors (399665876).

428242828 is a wasteful number, since it uses less digits than its factorization.

428242828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402 (or 1400 counting only the distinct ones).

The product of its digits is 131072, while the sum is 40.

The square root of 428242828 is about 20694.0288005985. The cubic root of 428242828 is about 753.7546993135.

The spelling of 428242828 in words is "four hundred twenty-eight million, two hundred forty-two thousand, eight hundred twenty-eight".